Elsevier

Chemical Physics Letters

Volume 536, 21 May 2012, Pages 96-99
Chemical Physics Letters

Strutural and optical approach of CdS@ZnS core–shell system

https://doi.org/10.1016/j.cplett.2012.03.090Get rights and content
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Abstract

An intense red-green photoluminescence (PL) emission was observed, at room temperature, in a CdS@ZnS core–shell system. The PL intensity emission of CdS@ZnS core–shell was strongly superior from that observed in individual CdS and ZnS nanoparticles. In this sense, we reported a comprehensive experimental and theoretical study of the optical behavior of CdS and ZnS nanoparticles (NPs), and CdS@ZnS core–shell system in the light the structural order–disorder conception. We also propose a model were the core and shell interface leads to favorable condition that triggers PL emission in CdS@ZnS core–shell.

Highlights

► An intense red-green photoluminescence (PL) emission was observed in a CdS@ZnS core–shell system. ► Experimental and theoretical study of the optical behavior of CdS and ZnS, and CdS@ZnS core–shell system in the light the structural order–disorder conception. ► A model were the core and shell interface leads to favorable condition that triggers PL emission in CdS@ZnS core–shell.

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